linux-kernel - Re: sync_mm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20100309085012.46c28722.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Tue, 9 Mar 2010 08:50:12 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	David Howells <dhowells@...hat.com>
Cc:	torvalds@...l.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: sync_mm_rss() issues

On Mon, 08 Mar 2010 13:59:56 +0000
David Howells <dhowells@...hat.com> wrote:

> 
> There are a couple of issues with sync_mm_rss(), as added by patch:
> 
> 	commit 34e55232e59f7b19050267a05ff1226e5cd122a5
> 	Author: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> 	Date:   Fri Mar 5 13:41:40 2010 -0800
> 	Subject: mm: avoid false sharing of mm_counter
> 
>  (1) You haven't implemented it for NOMMU mode.  What's the right way to do
>      this?  Just give an empty function?
> 
Ah, sorry. I'll prepare empty function immediately. But I have no NOMMU
enviroment...


>  (2) linux/mm.h should carry the empty function as an inline when
>      CONFIG_SPLIT_RSS_COUNTING=n, rather than it being defined as an empty
>      function in mm/memory.c.
> 

ok.

please wait..

Sorry,
-Kame

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/